Make the shape of the arrowheads more realistic and preferably somehow unique with re-designing the shape. Add more details, like some sort of rune, symbol or simply cracks and distortions on the arrowhead to make it less generic. The shading and the highlights also need more improvement, it's easier to detail a metallic arrowhead, but a bone one would look better. The wooden part needs more cracks and shading aswell. I recommend completely removing and redoing the other arrows, their angling is really unrealistic and their shape is distorted. Make them similar to the main arrow. Once you're done, add a glow with a motion effect and remove the totally unfitting background.